Make your salad sandwich a little heartier by topping with lettuce leaves, tomato slices, avocado slices and a slice of cheese.

Mayonnaise or salad dressing--what is the difference? They are both thick, creamy dressings that contain vegetable oil, lemon juice or vinegar and seasonings. Mayonnaise also contains egg yolk and is less sweet than salad dressing. They can be used interchangeably so you decide which you prefer.